#669BEF#669BEF

#669BEF is a light, vivid blue. Relative luminance 0.325; OKLCH L 68.9% C 0.137 H 259.3°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#669BEF
RGB	rgb(102, 155, 239)
HSL	hsl(217, 81%, 67%)
HSV	hsv(217, 57%, 94%)
CMYK	cmyk(57.3%, 35.1%, 0%, 6.3%)
CIE-LAB	lab(63.75, 6.87, -47.51)
CIE-LCH	lch(63.75, 48.00, 278.22°)
OKLab	oklab(68.94% -0.0255 -0.1344)
OKLCH	oklch(68.94% 0.137 259.3)
XYZ	xyz(32.7754, 32.4967, 86.1899)
Luminance	0.3250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BEF #EFBA66

analogous

#66E0EF #669BEF #7666EF

triadic

#669BEF #EF669B #9BEF66

tetradic

#669BEF #EF66E0 #EFBA66 #66EF76

square

#669BEF #EF66E0 #EFBA66 #66EF76

split-complementary

#669BEF #EF7666 #E0EF66

monochromatic

#1559C6 #2F77E9 #669BEF #9DBFF5 #D5E3FB

Accessibility & contrast

On white

2.80

#669BEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#669BEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BEF

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BEF	#FFFFFF	#000000	##000000
##669BEF	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A1F2

Deuteranopia (green-blind)

#6695ED

Tritanopia (blue-blind)

#00AEBA

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #669bef;
/* rgb */ color: rgb(102, 155, 239);
/* oklch */ color: oklch(68.9% 0.137 259.3);

Tailwind

colors: {
  custom: {
    50: '#9bb8f4',
    500: '#669bef',
    950: '#000000',
  },
}

SCSS

$custom: #669bef;
$custom-light: #9bb8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#669bef",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 239
  },
  "hsl": {
    "h": 216.788,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.68939,
    "c": 0.13683,
    "h": 259.3
  },
  "luminance": 0.32499
}

Semantic roles & 50–950 ramp

primary

#669BEF

secondary

#EEDDC2

accent

#8B08DD

background

#FAFBFE

surface

#F4F6FD

border

#CED0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669BEF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →